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Explain alpha- decay ?...

Explain `alpha`- decay ?

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`""_(92)U^(238) to ""_(90)Th^(234) + ""_(2)He^(4)`
The range of Q -value for alpha decay is 4-9 MeV.
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MODERN PUBLICATION-NUCLEI-REVISION EXERCISES (VERY SHORT ANSWER QUESTIONS)
  1. In both beta^(-1) and beta^(+) decay processes, the mass number of a ...

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  2. Why is it found experimentally difficult to detect neutrinos in nuclea...

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  3. Explain alpha- decay ?

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  4. Why alpha particles have high ionising power than beta rays?

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  5. How do the mass number and atomic number change in alpha -decay? A nuc...

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  6. What percentage of a radioactive substance will left undecayed after f...

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  7. A radioactive nucleus decays by emitting one alpha and two beta partic...

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  8. Why control rods are made up of cadmium?

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  9. Why nuclear fusion is very difficult to carry out?

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  10. Why nuclear fusion is also known as thermonuclear reaction?

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  11. Write the relation between average life and decay constant of a radioa...

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  12. When a beta^(-) particle is emitted from a nucleus, the neutrons-proto...

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  13. The curve representing the energy spectrum of beta -particles is

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  14. beta^(+) तथा beta^(-) क्षय क्रिया समझाइए |

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  15. What is nuclear fission ? Given an example to illustrate it.

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  16. What do you mean by nuclear fusion ?

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  17. नाभिकीय श्रृंखला अभिक्रिया में न्यूट्रॉन गुणन कारक से क्या तात्पर्य है...

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  18. What is meant by chain reaction ?

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  19. What happens when neutron reproduction factor is greater than one?

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  20. What is the role o f coolant in nuclear reactors?

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